<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    // 数组 includes方法
    const BOOK = ['西游记','红楼梦']
    console.log(BOOK.includes('水浒传'))

    //**幂运算
    console.log(2**10)
    console.log(Math.pow(2,10))
  </script>
</body>
</html>